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US 7,618,655 B2Granted
Method for the preparation of aqueous solutions of reactive chlorine compounds
AssigneeCytoTools GmbH
InventorsKlaus J. Wannowius, Dirk Kaiser
Life of this patent
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Abstract
This invention relates to aqueous solutions of reactive chlorine compounds having the empirical formulae H2Cl2O6 or ClO3H, for example, and the derivatives, anions or salts thereof. The invention further relates to methods for the production of said compounds and the use thereof in the pharmaceutical and particularly in the medical field, in cosmetics, medicinal care and in the domains of food technology and technology.
Claims5
Method for the preparation of aqueous solutions of reactive chlorine compounds, comprising:
- (a) reacting chlorine dioxide with an aqueous solution of hydrogen peroxide or another hydroperoxide or peroxide at a pH value of ≧6.5, to produce a gasous free reactive chlorine compound and a dissolved reactive chlorine compound,
- (b) lowering the pH value to 3 to 6 by adding an acid,
- (c) expelling the gaseous free reactive chlorine compound with a cooled gas and collecting the dissolved chlorine compound in a basic solution with a pH value of >10, and
- (d) incubating the collected dissolved reactive chlorine compound with up to 100-fold excess of chlorite at a pH value of 6 to 8.
1 more element
Dependencies are inferred from the claim text.